| 0,0 → 1,377 |
|---|
| /* |
| * Copyright (C) 2006 Ondrej Palkovsky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <genarch/fb/font-8x16.h> |
| #include <genarch/fb/fb.h> |
| #include <console/chardev.h> |
| #include <console/console.h> |
| #include <sysinfo/sysinfo.h> |
| #include <mm/slab.h> |
| #include <align.h> |
| #include <panic.h> |
| #include <memstr.h> |
| #include <config.h> |
| |
| #include "helenos.xbm" |
| |
| SPINLOCK_INITIALIZE(fb_lock); |
| |
| static __u8 *fbaddress = NULL; |
| |
| static __u8 *blankline = NULL; |
| |
| static unsigned int xres = 0; |
| static unsigned int yres = 0; |
| static unsigned int scanline = 0; |
| static unsigned int bitspp = 0; |
| static unsigned int pixelbytes = 0; |
| |
| static unsigned int position = 0; |
| static unsigned int columns = 0; |
| static unsigned int rows = 0; |
| |
| |
| #define COL_WIDTH 8 |
| #define ROW_BYTES (scanline * FONT_SCANLINES) |
| |
| #define BGCOLOR 0x000080 |
| #define FGCOLOR 0xffff00 |
| #define LOGOCOLOR 0x2020b0 |
| |
| #define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1)) |
| #define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1)) |
| #define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1)) |
| |
| #define POINTPOS(x, y) (y * scanline + x * pixelbytes) |
| |
| /***************************************************************/ |
| /* Pixel specific fuctions */ |
| |
| static void (*putpixel)(unsigned int x, unsigned int y, int color); |
| static int (*getpixel)(unsigned int x, unsigned int y); |
| |
| /** Put pixel - 24-bit depth, 1 free byte */ |
| static void putpixel_4byte(unsigned int x, unsigned int y, int color) |
| { |
| *((__u32 *)(fbaddress + POINTPOS(x, y))) = color; |
| } |
| |
| /** Return pixel color - 24-bit depth, 1 free byte */ |
| static int getpixel_4byte(unsigned int x, unsigned int y) |
| { |
| return *((__u32 *)(fbaddress + POINTPOS(x, y))) & 0xffffff; |
| } |
| |
| /** Put pixel - 24-bit depth */ |
| static void putpixel_3byte(unsigned int x, unsigned int y, int color) |
| { |
| unsigned int startbyte = POINTPOS(x, y); |
| |
| #if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN)) |
| fbaddress[startbyte] = RED(color, 8); |
| fbaddress[startbyte + 1] = GREEN(color, 8); |
| fbaddress[startbyte + 2] = BLUE(color, 8); |
| #else |
| fbaddress[startbyte + 2] = RED(color, 8); |
| fbaddress[startbyte + 1] = GREEN(color, 8); |
| fbaddress[startbyte + 0] = BLUE(color, 8); |
| #endif |
| } |
| |
| /** Return pixel color - 24-bit depth */ |
| static int getpixel_3byte(unsigned int x, unsigned int y) |
| { |
| unsigned int startbyte = POINTPOS(x, y); |
| |
| #if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN)) |
| return fbaddress[startbyte] << 16 | fbaddress[startbyte + 1] << 8 | fbaddress[startbyte + 2]; |
| #else |
| return fbaddress[startbyte + 2] << 16 | fbaddress[startbyte + 1] << 8 | fbaddress[startbyte + 0]; |
| #endif |
| } |
| |
| /** Put pixel - 16-bit depth (5:6:6) */ |
| static void putpixel_2byte(unsigned int x, unsigned int y, int color) |
| { |
| /* 5-bit, 5-bits, 5-bits */ |
| *((__u16 *)(fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5); |
| } |
| |
| /** Return pixel color - 16-bit depth (5:6:6) */ |
| static int getpixel_2byte(unsigned int x, unsigned int y) |
| { |
| int color = *((__u16 *)(fbaddress + POINTPOS(x, y))); |
| return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3); |
| } |
| |
| /** Put pixel - 8-bit depth (3:2:3) */ |
| static void putpixel_1byte(unsigned int x, unsigned int y, int color) |
| { |
| fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3); |
| } |
| |
| /** Return pixel color - 8-bit depth (3:2:3) */ |
| static int getpixel_1byte(unsigned int x, unsigned int y) |
| { |
| int color = fbaddress[POINTPOS(x, y)]; |
| return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5); |
| } |
| |
| /** Fill line with color BGCOLOR */ |
| static void clear_line(unsigned int y) |
| { |
| unsigned int x; |
| |
| for (x = 0; x < xres; x++) |
| (*putpixel)(x, y, BGCOLOR); |
| } |
| |
| |
| /** Fill screen with background color */ |
| static void clear_screen(void) |
| { |
| unsigned int y; |
| |
| for (y = 0; y < yres; y++) |
| clear_line(y); |
| } |
| |
| |
| /** Scroll screen one row up */ |
| static void scroll_screen(void) |
| { |
| unsigned int i; |
| __u8 *lastline = &fbaddress[(rows - 1) * ROW_BYTES]; |
| |
| memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES); |
| |
| /* Clear last row */ |
| if (blankline) { |
| memcpy((void *) lastline, (void *) blankline, ROW_BYTES); |
| } else { |
| for (i = 0; i < FONT_SCANLINES; i++) |
| clear_line((rows - 1) * FONT_SCANLINES + i); |
| |
| if (config.mm_initialized) { |
| /* Save a blank line aside. */ |
| blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC); |
| if (blankline) |
| memcpy((void *) blankline, (void *) lastline, ROW_BYTES); |
| } |
| } |
| } |
| |
| |
| static void invert_pixel(unsigned int x, unsigned int y) |
| { |
| (*putpixel)(x, y, ~(*getpixel)(x, y)); |
| } |
| |
| |
| /** Draw one line of glyph at a given position */ |
| static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < 8; i++) |
| if (glline & (1 << (7 - i))) { |
| (*putpixel)(x + i, y, FGCOLOR); |
| } else |
| (*putpixel)(x + i, y, BGCOLOR); |
| } |
| |
| /***************************************************************/ |
| /* Character-console functions */ |
| |
| /** Draw character at given position */ |
| static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row) |
| { |
| unsigned int y; |
| |
| for (y = 0; y < FONT_SCANLINES; y++) |
| draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y); |
| } |
| |
| /** Invert character at given position */ |
| static void invert_char(unsigned int col, unsigned int row) |
| { |
| unsigned int x; |
| unsigned int y; |
| |
| for (x = 0; x < COL_WIDTH; x++) |
| for (y = 0; y < FONT_SCANLINES; y++) |
| invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y); |
| } |
| |
| /** Draw character at default position */ |
| static void draw_char(char chr) |
| { |
| draw_glyph(chr, position % columns, position / columns); |
| } |
| |
| static void draw_logo(unsigned int startx, unsigned int starty) |
| { |
| unsigned int x; |
| unsigned int y; |
| unsigned int byte; |
| unsigned int rowbytes; |
| |
| rowbytes = (helenos_width - 1) / 8 + 1; |
| |
| for (y = 0; y < helenos_height; y++) |
| for (x = 0; x < helenos_width; x++) { |
| byte = helenos_bits[rowbytes * y + x / 8]; |
| byte >>= x % 8; |
| if (byte & 1) |
| (*putpixel)(startx + x, starty + y, LOGOCOLOR); |
| } |
| } |
| |
| /***************************************************************/ |
| /* Stdout specific functions */ |
| |
| static void invert_cursor(void) |
| { |
| invert_char(position % columns, position / columns); |
| } |
| |
| /** Print character to screen |
| * |
| * Emulate basic terminal commands |
| */ |
| static void fb_putchar(chardev_t *dev, char ch) |
| { |
| spinlock_lock(&fb_lock); |
| |
| switch (ch) { |
| case '\n': |
| invert_cursor(); |
| position += columns; |
| position -= position % columns; |
| break; |
| case '\r': |
| invert_cursor(); |
| position -= position % columns; |
| break; |
| case '\b': |
| invert_cursor(); |
| if (position % columns) |
| position--; |
| break; |
| case '\t': |
| invert_cursor(); |
| do { |
| draw_char(' '); |
| position++; |
| } while ((position % 8) && position < columns * rows); |
| break; |
| default: |
| draw_char(ch); |
| position++; |
| } |
| |
| if (position >= columns * rows) { |
| position -= columns; |
| scroll_screen(); |
| } |
| |
| invert_cursor(); |
| |
| spinlock_unlock(&fb_lock); |
| } |
| |
| static chardev_t framebuffer; |
| static chardev_operations_t fb_ops = { |
| .write = fb_putchar, |
| }; |
| |
| |
| /** Initialize framebuffer as a chardev output device |
| * |
| * @param addr Physical address of the framebuffer |
| * @param x Screen width in pixels |
| * @param y Screen height in pixels |
| * @param bpp Bits per pixel (8, 16, 24, 32) |
| * @param scan Bytes per one scanline |
| * |
| */ |
| void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan) |
| { |
| switch (bpp) { |
| case 8: |
| putpixel = putpixel_1byte; |
| getpixel = getpixel_1byte; |
| pixelbytes = 1; |
| break; |
| case 16: |
| putpixel = putpixel_2byte; |
| getpixel = getpixel_2byte; |
| pixelbytes = 2; |
| break; |
| case 24: |
| putpixel = putpixel_3byte; |
| getpixel = getpixel_3byte; |
| pixelbytes = 3; |
| break; |
| case 32: |
| putpixel = putpixel_4byte; |
| getpixel = getpixel_4byte; |
| pixelbytes = 4; |
| break; |
| default: |
| panic("Unsupported bpp"); |
| } |
| |
| unsigned int fbsize = scan * y; |
| |
| /* Map the framebuffer */ |
| fbaddress = (__u8 *) hw_map((__address) addr, fbsize); |
| |
| xres = x; |
| yres = y; |
| bitspp = bpp; |
| scanline = scan; |
| |
| rows = y / FONT_SCANLINES; |
| columns = x / COL_WIDTH; |
| |
| clear_screen(); |
| draw_logo(xres - helenos_width, 0); |
| invert_cursor(); |
| |
| chardev_initialize("fb", &framebuffer, &fb_ops); |
| stdout = &framebuffer; |
| |
| sysinfo_set_item_val("fb", NULL, true); |
| sysinfo_set_item_val("fb.kind", NULL, 1); |
| sysinfo_set_item_val("fb.width", NULL, x); |
| sysinfo_set_item_val("fb.height", NULL, y); |
| sysinfo_set_item_val("fb.bpp", NULL, bpp); |
| sysinfo_set_item_val("fb.scanline", NULL, scan); |
| sysinfo_set_item_val("fb.address.physical", NULL, addr); |
| } |